GRID 2004 - In the last few years, the Grid community has been growing very rapidly and many new technologies and components have been proposed. This, along with the growing popularity Web-based technologies, and the availability of cheap commodity components is changing the way we do computing and business. There are now many ongoing grid projects with research and production-oriented goals. Grid 2004 is an international meeting that brings together a community of researchers, developers, practitioners, and users involved with the Grid. The objective of Grid 2004 is to serve as a forum to present current and emerging work as well as to exchange research ideas in this field. The previous events that are part of this series of events were Grid 2000, Bangalore, India; Grid 2001, Denver, CO; Grid 2002, Baltimore, MD; Grid 2003, Phoenix, USA. All of these events have been successful in attracting high quality papers and a wide international participation. Last years event attracted over 400 registered participants. This has been added to Grid Resources Subject Tracer™ Information Blog.